I agree: caveats can be distracting. I'm not at all suggesting that, for instance, the 37 Signals boys start adding cavaets.
I'm suggesting that they stop constantly posting articles that say, in essence, "Hey, world, you're doing it all wrong and we know how to do it right and you should take your cue from us. There's only one Right Way and we have a lock on it." You know, like when they cap on startups because "building a business" is The Better Way. As opposed to a different pursuit altogether.